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In a capillary tube expt., a vertical 30...

In a capillary tube expt., a vertical 30cm capillary tube is dipped in water. The water rises to a height of 10cm due to capillary action. If this expt. is conducted in a freely falling elevator, the length of water column becomes

A

A. 10 cm

B

B. 20 cm

C

C. 30 cm

D

D. zero

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The correct Answer is:
C
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